| | | Extech EX500 Series Heavy Duty Industrial, Waterproof DMMs |  | | |
| EX503 ↓
| EX505 ↓
| EX510 ↓
| EX520 ↓
| EX530 ↓
| EX540 ↓
| EX570 ↓
| Basic Functions (Volts, Amps, Ohms) |  |  |  |  |  |  |  | | Display Counts | 4000 | 4000 | 6000 | 6000 | 40000 | 40000 | 40000 | | Autoranging |  |  |  |  |  |  |  | | Basic Accuracy (VDC) | 0.5% | 0.5% | 0.09% | 0.09% | 0.06% | 0.06% | 0.06% | | True RMS | |  | |  |  |  |  | | Capacitance |  |  | |  |  |  |  | | Frequency |  |  |  |  |  |  |  | Temperature (Thermocouple) | |  | |  |  |  |  | Temperature (InfraRed) | | | | | | |  | | Duty Cycle |  |  |  |  |  |  |  | | Diode Test / Continuity |  |  |  |  |  |  |  | | Datalogging | | | | | |  | | | Wireless PC Interface | | | | | |  | | | Category Rating | CAT IV-600V CAT III-1000V |
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